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Elbow lameness in horses refers to pain or dysfunction arising from the elbow joint or nearby soft tissues. Although the elbow is not a common source of forelimb lameness in horses, problems in this region can have a major impact on movement, comfort, and athletic ability.
The elbow helps transfer force through the forelimb each time the horse bears weight, pushes off, or absorbs concussion. Its limited range of motion makes it efficient for forward movement, but also means trauma, joint disease, or damage to surrounding structures can quickly disrupt normal limb mechanics.
Because elbow-related problems often appear as general forelimb lameness, identifying the source of pain can be challenging. Conditions such as fractures, dislocation, osteoarthritis, osseous cysts, bursitis, and ligament injuries may all affect this region, with signs ranging from subtle gait changes to sudden inability to bear weight.
Keep reading to learn more about the anatomy and function of the equine elbow, common disorders that affect this joint, signs of elbow lameness, risk factors, diagnostic methods, and treatment options for affected horses.
Elbow Lameness in Horses
Elbow lameness in horses is an important but relatively uncommon cause of forelimb dysfunction that can significantly affect performance, comfort, and long-term soundness.
The elbow joint plays a key role in weight-bearing and forward movement, acting as a hinge between the upper and lower limb.
Because of its complex anatomy and the high forces placed on it during locomotion, a wide range of injuries and degenerative conditions can occur, even though clinical signs are sometimes subtle in the early stages.
Conditions affecting the elbow include:
- Traumatic injuries: Fractures and luxation (displacement) can occur after falls, kicks, collisions, or other high-impact events that damage the elbow joint or surrounding bone structures.
- Developmental disorders: Osseous cysts and other developmental abnormalities may affect the joint surface or nearby bone, contributing to pain, stiffness, and altered movement.
- Degenerative disease: Osteoarthritis can develop when cartilage, bone, and joint tissues are damaged over time, leading to chronic inflammation and reduced joint function.
- Soft tissue injuries: Bursitis, ligament damage, and other injuries to supporting tissues can contribute to pain, swelling, and altered gait.
In many cases of elbow issues, horses present with non-specific forelimb lameness, making localization to the elbow challenging without advanced diagnostic techniques.
A thorough understanding of elbow anatomy, biomechanics, and common pathological conditions is important for accurate diagnosis and effective treatment. Modern diagnostic tools such as radiography, ultrasound, and computed tomography have improved the ability to identify lesions that were previously difficult to detect.
What's your top priority with your horse's health?
What's your top priority with your horse's health?
The Horse’s Elbow Joint
The horse’s elbow is a hinge joint that allows the front leg to bend and straighten. It is powered mainly by two groups of muscles: flexors, which bend the joint, and extensors, which straighten it. [1]
The elbow joint depends more on muscles than on ligaments for support. [2] The most important flexors related to the elbow are the biceps and brachialis muscles, while the triceps are the main extensors that straighten the leg, allowing the horse to bear weight.
These muscles work with strong ligaments and tendons to keep the joint stable during movement. [1]
Illustration: Dr. Ana Mesa, PhD
Important supporting structures surround the joint, including small fluid-filled sacs called bursae that reduce friction, as well as major blood vessels and nerves that supply the limb. [1]
The point of the elbow, called the olecranon, is where several key muscles attach, giving the horse leverage for movement. The joint itself is designed to move forward and backward in a controlled range of about 60 to 150 degrees, making it strong and efficient for locomotion but poorly suited to side-to-side motion. [1]
Lameness related to the elbow is relatively rare, although several elbow disorders can affect a horse’s well-being. [2]
Horse Elbow vs. Human Elbow
While the horse’s elbow shares the same basic structure as the human elbow, there are important differences in how each joint functions. In both species, the joint is formed by the humerus, radius, and ulna and acts primarily as a hinge, allowing the limb to bend and straighten. [1][3]
The human elbow also allows rotation of the forearm, such as turning the palm up and down. [3] This movement is largely absent in horses. Instead, the equine elbow is specialized for efficient forward motion, providing stability during weight-bearing and locomotion. [1]
Another key difference lies in how the joint is supported and used. In humans, the elbow is supported by a combination of ligaments and surrounding soft tissues that allow for a wide range of activities and positions. [3] In horses, the joint is adapted for speed and endurance, with large muscle groups helping absorb impact and maintain stability during movement. [1]
Parts of the equine elbow, particularly the outer aspect and the point of the elbow, have relatively little soft tissue covering. [1] This makes them more vulnerable to trauma than the more padded human elbow.
Types of Equine Elbow Disorders
Several conditions can affect the equine elbow. Some involve the joint surface or bone, while others affect the soft tissues around the point of the elbow.
Table 1. Common elbow disorders in horses
| Elbow disorder | Common causes or risk factors | Typical signs | Treatment considerations |
|---|---|---|---|
| Osteoarthritis |
|
|
|
| Osseous cysts |
|
|
|
| Olecranon fracture |
|
|
|
| Olecranon bursitis |
|
|
|
| Elbow luxation |
|
|
|
| Elbow subluxation |
|
|
|
Osteoarthritis
Osteoarthritis of the elbow is relatively rare in horses. It is most often seen in older animals with a history of athletic work, particularly those that have experienced previous trauma. Affected horses typically show signs of pain, often more noticeable when moving on hard surfaces, along with lameness that may occur without obvious swelling of the joint. [2]
Because the elbow is a high-load joint, osteoarthritis in this region can affect comfort and performance even when external swelling is minimal. [2]
Osseous Cysts
Osseous cysts are small cavity-like defects that develop within the bone, most commonly on the inner side of the forelimb. They are seen most often in young, growing sport horses. [2]
These lesions can cause mild to severe lameness. In some cases, the lameness appears suddenly and may persist despite rest or even after surgical treatment. [2]
Olecranon Fracture
Olecranon fractures typically occur as a result of trauma, such as a kick or a fall. Affected horses usually show a sudden onset of severe lameness and may stand with the elbow dropped, giving the limb a characteristic appearance. [2]
Swelling may be present, and the horse typically shows pain when pressure is applied to the point of the elbow or when the olecranon is manipulated. These fractures are classified into different types depending on the horse’s age and the specific location and nature of the injury. [2]
Olecranon Bursitis
Olecranon bursitis, commonly known as capped elbow or shoe boil, is inflammation of the bursa covering the point of the elbow. It is most often caused by repeated trauma, such as pressure or impact when a horse lies down and gets up, particularly on hard surfaces or inadequate bedding. [1][4] In some cases, it may also result from the hind hoof striking the elbow during movement. [4]
The condition typically presents as a soft, fluid-filled swelling over the elbow, although chronic swelling may become firmer. Although the swelling can be quite noticeable, olecranon bursitis is usually a cosmetic issue rather than a cause of lameness unless it is particularly large or becomes infected. [4]
Management focuses on removing the source of irritation, such as by providing deeper bedding, removing shoes, or using protective boots to prevent further trauma. With these changes, the swelling often resolves on its own over time. However, residual thickening or blemishing at the site is common even after healing. [4]
Luxation
Elbow luxation, also known as dislocation, occurs when the joint comes out of alignment. It is a fairly rare injury in horses, but it is serious when it occurs. [1][5][6]
Luxation is commonly associated with fractures, although it can occasionally occur on its own. [1][2] These injuries are usually caused by significant trauma, such as a severe fall. [1]
Clinical signs are typically sudden and severe. Horses usually show marked swelling behind the elbow and are unable to bear weight on the affected limb. [1][2] In some cases, the leg may be held in an abnormal position. [7]
Without appropriate treatment, the joint can remain unstable, increasing the risk of long-term complications such as osteoarthritis. Closed reduction refers to manually repositioning the displaced joint without surgically opening the area. If closed reduction is not successful or the joint remains unstable afterward, surgery is required to restore stability and improve the outcome. [1][6][7]
Subluxation is a related condition in which the joint only partially dislocates, often due to tearing or rupture of the medial collateral ligament. This is usually caused by a horse pulling on a trapped limb. [1]
Signs & Symptoms of Elbow Lameness
The main sign of elbow lameness is difficulty bearing weight on one or both forelimbs. [1][2][4][8] Depending on the underlying condition, signs may appear suddenly after trauma or develop more gradually with degenerative joint disease.
Other signs may include: [8]
- Forelimb lameness
- Reluctance or inability to bear weight on the affected limb
- Swelling around or behind the elbow
- Pain when the point of the elbow is touched or manipulated
- Dropped elbow posture or abnormal limb position
- Worsening pain or lameness on hard surfaces
In many cases, the source of lameness can be narrowed down to the elbow with intra-articular anesthesia, also known as a joint block, because lameness improves when the elbow is numbed. [8]
When to Call the Veterinarian
Elbow lameness should be assessed by a veterinarian, especially when the horse is unwilling to bear weight, has obvious swelling, or shows signs after a fall, kick, or trapped-limb injury. These cases may involve fractures, luxation, ligament injury, or other problems that require prompt diagnosis.
Call a veterinarian promptly if your horse shows:
- Sudden severe forelimb lameness
- Inability or reluctance to bear weight
- Marked swelling around the elbow
- A dropped elbow posture or abnormal limb position
- Pain when the point of the elbow is touched
- A swelling over the elbow that becomes hot, painful, draining, or rapidly larger
Veterinary evaluation helps determine whether the problem is coming from the elbow joint, nearby bone, or surrounding soft tissues. Early assessment is particularly important when trauma is involved, because treatment options and prognosis depend on the type and severity of the injury.
Risk Factors for Elbow Injuries
Elbow injuries in horses are relatively uncommon, but certain factors can increase the risk. Trauma is the most significant cause, including kicks from other horses, falls, or getting a limb caught and struggling to free it. [1][2][4]
Horses that spend time on hard or poorly bedded surfaces are prone to repeated pressure on the point of the elbow, which can lead to conditions such as bursitis. [1][4]
Young, growing horses may be at higher risk of developmental issues such as osseous cysts. Older horses, especially those with a history of athletic work, are more susceptible to degenerative conditions such as osteoarthritis. [2]
Conformation, management practices, and the type of work the horse performs can all influence how much stress is placed on the joint and surrounding structures. Horses with forelimb conformation faults may place uneven forces on the limb, which can affect how joints and soft tissues tolerate work.
Diagnosing Elbow Lameness
Diagnosing elbow lameness begins with a veterinary examination and localization of the source of pain. Because elbow disorders may appear as non-specific forelimb lameness, diagnostic imaging is often needed to identify bone, joint, or soft tissue changes.
In acute injuries, the first priority is often stabilizing the horse and preventing further damage before advanced diagnostics are performed. Horses with severe pain, suspected fracture, joint instability, or an inability to bear weight require prompt veterinary care, careful handling, and appropriate limb support during examination or transport. Do not attempt to move a horse with an acute injury without veterinary guidance.
Tools used in diagnosing elbow lameness may include: [2][7][8][9]
- X-rays
- Ultrasound
- Nuclear scintigraphy (“bone scan”)
- CT scan
Radiographs are commonly used to evaluate fractures, luxation, osseous cysts, and degenerative joint changes. Ultrasound can help assess soft tissue structures around the elbow, while nuclear scintigraphy or CT may be considered when the source of pain is difficult to localize or more detailed imaging is needed.
These tools help the veterinarian evaluate the joint, surrounding bone, and soft tissues so treatment can be matched to the underlying cause of lameness.
Treating Elbow Lameness
Treatment for elbow lameness depends on the condition affecting the joint or surrounding tissues. Some cases can be managed conservatively, while others require intra-articular therapy, stabilization, or surgery. [1][2][4][6][7][9][10]
Because elbow lameness is relatively uncommon in horses, treatment planning depends heavily on identifying the exact cause and determining whether the injury is stable, progressive, or catastrophic. Mild soft tissue injuries or early degenerative changes may respond to rest, controlled exercise, medication, or joint-directed therapies. In contrast, severe fractures, luxations, or injuries that compromise the horse’s ability to bear weight may require urgent stabilization and have a guarded prognosis.
Treatment options may include: [1][2]
- Stall rest
- Controlled exercise or rehabilitation after the acute phase
- Anti-inflammatory medications or pain management
- Corticosteroids
- Surgery
- Cartilage-protecting agents in cases of osteoarthritis
- Curettage in cases of osseous cysts
- Internal fixation in cases of fractures
- Closed reduction in cases of luxation
For some horses, joint injections or corticosteroid joint injections may be considered as part of a broader treatment plan. The most appropriate approach depends on the diagnosis, severity of the lesion, the horse’s comfort level, and the intended use of the horse.
In acute traumatic cases, immediate veterinary stabilization is essential to prevent further displacement, soft tissue damage, or additional injury during movement or transport. Horses with suspected fracture or luxation should be handled carefully, kept as quiet as possible, and moved only under veterinary guidance.
Although many elbow conditions can be treated or managed, catastrophic elbow injuries often carry a poor prognosis. If the joint cannot be stabilized, the horse cannot bear weight comfortably, or the injury is likely to result in severe chronic pain or loss of function, humane euthanasia may be the only appropriate option.
How to Help Prevent Elbow Problems
Not all causes of elbow lameness can be prevented, especially traumatic injuries such as fractures or luxations. However, good management can help reduce unnecessary strain on the forelimbs, support joint health, and lower the risk of some injuries or degenerative changes over time.
A balanced exercise program is important for maintaining strength, coordination, and joint stability. Training should be introduced gradually, especially when increasing workload, adding jumping, working on uneven terrain, or returning a horse to exercise after time off. Avoid sudden increases in intensity or duration, as fatigue can reduce coordination and increase the risk of missteps or falls.
Footing also plays a key role in limb health. Very hard surfaces increase concussion through the joints, while deep, slippery, or uneven footing can alter limb loading and increase the risk of strain. Whenever possible, work horses on safe, consistent surfaces that provide traction without excessive impact. [11]
Maintaining an appropriate body condition is also important. Excess body weight increases the load carried by the limbs and may contribute to joint stress over time. Regular body condition scoring, appropriate calorie intake, and a balanced exercise program can help reduce unnecessary strain on the forelimbs.
Routine farrier care supports correct hoof balance and helps reduce abnormal forces traveling up the limb. Because the hoof plays an important role in shock absorption and limb alignment, regular trimming can help support more even loading through the joints. [12] Some horses may benefit from corrective shoeing to address compensatory movement patterns.
Supporting Joint Health Through Diet
A well-balanced feeding program supports the tissues involved in joint and limb health, including bone, cartilage, ligaments, tendons, and muscle. While nutrition cannot prevent all elbow injuries, it can help provide the building blocks needed for tissue maintenance, repair, and normal musculoskeletal function.
Start with a balanced, forage-based diet that provides adequate energy, protein, vitamins, minerals, water, and salt. Horses also require sufficient high-quality protein and amino acids to support muscle, connective tissue, and collagen synthesis. [13]
Minerals such as copper and zinc are involved in collagen formation and antioxidant defense, while calcium and phosphorus are major structural minerals in bone. These nutrients must be supplied in appropriate amounts and ratios to support skeletal strength and normal growth. [13]
Energy intake should also be managed carefully. Overfeeding calories can lead to excess body weight, increasing the load on joints and soft tissues. In growing horses, excessive energy intake may also contribute to abnormal cartilage development and developmental orthopedic disease. [13]
Nutritional supplements such as methylsulfonylmethane (MSM), hyaluronic acid, and omega-3 fatty acids may also be used to support joint comfort, normal inflammatory responses, and connective tissue health as part of a broader management plan.
Work with a qualified equine nutritionist to design a balanced feeding program that provides adequate protein, vitamins, and minerals without oversupplying calories. You can submit your horse’s information online for a free diet evaluation any time.
Frequently Asked Questions
Here are some frequently asked questions about elbow lameness in horses:
Elbow lameness in horses refers to pain, injury, or dysfunction involving the elbow joint or surrounding soft tissues. Although uncommon, elbow disorders can significantly affect comfort, movement, performance, and weight-bearing ability. Diagnosing elbow-related lameness can be challenging because the signs often resemble other causes of forelimb lameness.
Common signs of elbow lameness include forelimb lameness, reluctance to bear weight, swelling around the elbow, pain when the area is touched, and abnormal limb posture. Horses with severe injuries may be unable to bear weight, while those with chronic conditions may show more subtle gait abnormalities.
Elbow lameness is most often caused by trauma, such as kicks, falls, collisions, or a limb becoming trapped. Other causes include osteoarthritis, osseous cysts, olecranon fractures, olecranon bursitis (capped elbow), elbow luxation, subluxation, and ligament injuries.
Horses exposed to trauma are at the greatest risk of elbow injuries. Young, growing horses may be more likely to develop osseous cysts, while older performance horses are more susceptible to osteoarthritis. Hard surfaces, inadequate bedding, demanding athletic work, and certain conformational traits can also increase risk.
Veterinarians diagnose elbow lameness through a physical examination, gait assessment, diagnostic anesthesia, and imaging. Common diagnostic tools include radiography (X-rays), ultrasound, nuclear scintigraphy (bone scans), and computed tomography (CT) to evaluate the joint, bones, and surrounding soft tissues.
Many causes of elbow lameness can be treated or managed successfully. Treatment depends on the diagnosis and may include rest, anti-inflammatory medications, corticosteroids, joint therapies, rehabilitation, or surgery. Severe injuries such as fractures and joint dislocations often require more advanced treatment and stabilization.
Olecranon bursitis, commonly called capped elbow or shoe boil, is inflammation of the bursa located over the point of the elbow. It is usually caused by repeated pressure or trauma, such as lying on hard surfaces or repeated contact between the elbow and the hind hoof.
Most cases of capped elbow are primarily cosmetic and do not cause lameness. However, large swellings, painful lesions, or infected bursae require veterinary attention. Addressing the source of irritation often helps prevent the condition from worsening.
Elbow osteoarthritis is a degenerative joint disease that affects cartilage and other joint structures. Although relatively uncommon, it is most often seen in older horses or those with a history of elbow trauma. Affected horses may develop chronic forelimb lameness and pain that is often more noticeable on hard surfaces.
Osseous cysts are cavity-like defects that develop within the bone near the elbow joint. They are most commonly diagnosed in young, growing horses and can cause mild to severe lameness. Treatment may involve rest, surgery, or other therapies depending on the size and location of the lesion.
Elbow luxation is a complete dislocation of the elbow joint, while subluxation is a partial dislocation. Both conditions are usually associated with trauma and can cause severe lameness, pain, and joint instability. Luxation is generally more severe and often requires urgent veterinary treatment.
A veterinarian should evaluate any horse that develops sudden forelimb lameness, refuses to bear weight, has swelling around the elbow, or shows signs of pain after a fall, kick, or other traumatic event. Early diagnosis improves treatment options and may help prevent long-term complications.
Not all elbow injuries can be prevented, but risk can be reduced through good management. Safe turnout, proper footing, adequate bedding, routine farrier care, gradual conditioning programs, and maintaining an appropriate body condition can help support joint health and reduce the likelihood of some elbow problems.
Summary
Elbow lameness in horses is uncommon, but it can affect comfort, movement, performance, and long-term soundness.
- The elbow is a hinge joint that helps the horse bear weight and move the forelimb forward.
- Several problems can affect the elbow, including arthritis, bone cysts, fractures, bursitis, dislocation, partial dislocation, and ligament injuries
- Signs may include forelimb lameness, swelling around the elbow, pain when the area is touched, trouble bearing weight, or an abnormal leg position
- Elbow lameness can be hard to diagnose because it may look like general forelimb lameness
- Treatment depends on the cause and may include rest, joint medication, supportive care, splints, slings, or surgery
References
- Stashak. T. S. and Baxter. G. M. Adams and Stashak’s Lameness in Horses. 7th edition. Wiley Blackwell, Hoboken. 2020.
- Ross. M. W. and Dyson. S. J. Eds. Diagnosis and Management of Lameness in the Horse. 2nd ed. Elsevier/Saunders, St. Louis, Mo. 2011.
- Gorman. N. Elbow Joint. Kenhub. 2023.
- Auer. J. et al. Equine Surgery. Fifth edition. Elsevier, St. Louis, Missouri. 2019.
- Rubio‐Martínez. L. et al. Elbow Joint Luxation in a 1‐month‐old Foal. Australian Veterinary Journal. 2008. View Summary
- Collar. E. M. Equid Elbow Luxation and Subluxation: Anatomical Review and Case Management Considerations. Equine Veterinary Education. 2022.
- Collar. E. M. et al. Successful Closed Reduction and Conservative Management with Traumatic Elbow Luxation and Medial Collateral Ligament Rupture in an Equid. Equine Veterinary Education. 2021.
- Zimmerman. M. et al. CT Is a Feasible Imaging Technique for Detecting Lesions in Horses with Elbow Lameness: A Study of 139 Elbows in 99 Horses. Veterinary Radiology & Ultrasound. 2022. View Summary
- Bowkett‐Pritchard. C. et al. Computed Tomography of the Equine Elbow: A Subchondral Bone Lesion in a Novel Location. Equine Veterinary Education. 2023.
- Bobkiewicz. J. J. and Hodgson. S. E. Arthroscopically‐assisted Removal of an Osteochondral Fragment from the Equine Elbow Using a Caudo‐medial Approach. Equine Veterinary Education. 2012.
- Rohlf. C. M. et al. Arena Surface Vertical Impact Forces Vary with Surface Compaction. The Veterinary Journal. 2023. View Summary
- Oosterlinck. M. et al. Pressure Plate Analysis of Toe–Heel and Medio-Lateral Hoof Balance at the Walk and Trot in Sound Sport Horses. The Veterinary Journal. 2013.
- Nutrient Requirements of Horses: Sixth Revised Edition. National Academies Press, Washington, D.C. 2007. View Summary
